Definition of evidence for Students. 1  1 : a sign which shows that something exists or is true : indication They found evidence of a robbery. 2  2 : material presented to a court to help find the truth about something.
Francis Crick and his American colleague, James Watson, discovered the double helix structure of DNA. For this fundamental finding Francis, James and Maurice Wilkins were awarded the Nobel Prize for Physiology or Medicine in 1962.nravelling the double helix Stories The discovery of the structure of DNA by James Watson and Francis Crick in 1953 is one of the most famous scientific discoveries of all time. Unravelling the double helix Stories.
Rosalind Franklin's work with X-ray diffraction showed that the DNA molecule is shaped like a(an) _____ and contains _____ strands. helix and two How did Francis Crick and James Watson try to understand the structure of DNA? they built three-dimensional models of the DNA molecule from cardboard and wire How did Watson and Crick describe the structure of DNA? DNA was a double helix, in which two strands were wound around each other Is the following sentence true or false? According to the principle of base pairing, hydrogen bonds could form only between adenine and cytosine.